Tottenham chairman Daniel Levy has told Sky Sports he is "100 percent confident" of keeping the club's biggest names.
Harry Kane has been linked with interest from Real Madrid while Danny Rose is a reported transfer target for Manchester United. In the past Dele Alli, Eric Dier and Toby Alderweireld have been targets for other clubs.
But Levy says no one will move on unless the club wants them to go.
"I'm 100 percent confident. Every single player that we want to keep, I can assure you will be playing for Tottenham Hotspur next season," he said.
"Mauricio's strategy has always been that if an opportunity arises that he thinks can improve the squad then we will need to look at it, but January is always a very difficult window."
The Telegraph reported on Thursday that Dele Alli is set to open talks over a new Tottenham contract and also said Harry Kane will be next to be offered new terms.
Earlier in the week Kane said he is not currently negotiating a deal with the club.